ASIC 7755 For Single Phase Kwh Meter

The OSE7755 is an accurate electrical energy measurement IC intended for use in singlePhase distribution systems. It provides instantaneous and average real powerBased on line current and voltage. The part specifications surpass the accuracyRequirements as stated in the IEC1036 standard. The only analog circuitry usedIn the OSE7755 is in the ADCs and reference circuit. All other signal processingG. Multiplication and filtering) is carried out in the digital domain. ThisApproach provides superior stability and accuracy over extremes in environmentalConditions and over time.The current channel has a high gain mode for interfacing to low value shunt resistancesWithout losing dynamic range. Gain calibration between channels is adjustedExternal to this device. The OSE7755, available in 24-lead DIP and SSOP packages,Is pin compatible with the ADE7755. It has the same functionalities as theADE7755. Every piece will be strictly tested.This chip has been bulk used in China and other countries for more than 3 years.Very good performance.